Soot-cleaner for steam-boilers.



No. 799,372. PATENTED SEPT. 12, 1905. E. G. FISHER.

SOOT CLEANER FOR STEAM BOILERS.

APPLICATION FILED DEC. 23. 190-;

2 SHBETSSHBET 1.

WITNESSES: gyvfigy wlfwm fw @aZek M BY ATTORNEY PATENTED SEPT. 12, 1905.

E. C. FISHER. 300T CLEANER FUR STEAM BOILERS.

APPLICATION FILED 1330.23, 1904.

2 SHEETS-SHEET 2.

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@iiwz BY ATTORNEY UNITED STATES PATENT OFFICE.

ELBERT C. FISHER, OF SAGINAVV, MICHIGAN, ASSIGNOR TO W ICKES BROS, OF SAGINAWV,'1\II OHIGAN.

SCOT-CLEANER FOR STEAM-BOILERS.

' Specification of Letters Patent.

Patented Sept. 12, 1905 Application filed December 23, 1904. Serial No. 238,107.

To all whom it may concern.-

Be it known that I, ELBERT (J. FISHER, a citizen of the United States, residing at Saginaw, in the county of Saginaw and State of Michigan, have in vented certain new and useful Improvements in Soot-Cleaners for Steam- Boilers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention is a device for use in connection with vertical water-tube boilers and in similar places in which deposits of soot and light cinders or material of like nature are apt to accumulate. In boilers this deposit generally collects in corners or pockets of the boiler-setting, and more especially around the bases of vertical bafl'le-plates. are objectionable because they interfere with free circulation of hot gases around the lower parts of the boiler-tubes.

The objects of my invention are to provide means for blowing out such deposits and for preventing their accumulation.

My invention further embodies a blowing apparatus of such construction that it can be readily removed from the boiler without interfering with the operation of the boiler, and the twyers or nozzles are of such form that the openings through which the jets are discharged are not liable to become clogged.

My invention is shown in the accompanying drawings, in which Figure 1 shows a vertical water-tube boiler with the blowing device adapted to remove accumulations of soot from the pocket formed by the junction of avertical baffie-plate with the head of the lower drum. Fig. 2 is a top plan view of the blowing device, the boilersetting being shown in horizontal section. Fig. 3 is a detail of the lower part of the boiler, showing the operation of the blower. Fig. 4 is a part longitudinal section of one of the twyers.

As is clearly shown in the drawings, the de vice consists in a series of pipes 1, connected at their outer ends to a header 2, to which gas under pressure is admitted. In practice the gas is usually live steam from the boiler. To the inner end of each pipe 1 is secured atwyer 3, having discharge-openings 3 and 3". These twyers are susceptible of various embodiments to suit the various conditions under Such deposits which'they are to be used. I illustrate only one form, which is especially adapted for use in a vertical boiler of the type shown in Fig. 1, where 4 is the lower drum, 5 is the area occupied by the vertical boiler-tubes, and 6 is a central diaphragm or baffle-plate to guide the gases of combustion up, one side of the plate and down the other in contact with the tubes.

The blowing device is shown as adapted to clear away the deposit of soot and cinders, (indicated at 7 in Fig. 3.)

To admit the ends of the twyers 3, small openings are provided through the lower end of the baffle-plate 6, through which the twyers are pushed, as shown in Fig. 3. "10 remove the twyers, it is only necessary to disconnect the header 2 from its pipe-line and draw it out through the opening 8 in the boiler-setting. The twyer best suited to this condition is illustrated in Fig. 4, being formed of a pipe, one end 3 being beveled and closed and the other being prbvided with a screwthread 3 or equivalent device for attachment to pipe 1. In the lower part of the beveled end 3 is provided a nozzle 3, which is preferably bell-mouth, this form being best adapted to high velocity of discharge. The opening 3 is protected against clogging by the overhanging or upwardly and outwardly inclined upper part of the beveled end 3, which prevents soot from coming in contact with the opening 3. The cylindrical part of the twyer is of suflicient length to pass through the baffle-plate 6. The opening 3 discharges in a direction opposite to '3 and is formed in the beveled end 3 of an upwardly-projecting pocket 3 The overhanging upper part of the beveled end 3 protects the opening 3 from accumulation of soot.

As indicated in Fig. 3, the action of gas under pressure discharged from openings 3 and 3 operates effectually to clear away deposits of soot from the lower end of the baffle-plate, keeping the top of the drum 4:-

and the lower part of the tubes clean.

The construction of the twyers is such that if burned out or otherwise injured they may be easily and quickly replaced, and the arrangement of the header 2 and pipes 1 permits the easy withdrawal and replacing of the entire device.

What I claim as my invention, and desire to secure by Letters Patent, is as follows:

1. In a device of the class described the combination with a header of a plurality of pipes communicating with said header; a twyer secured to the end of each pipe, said twyer having one of its ends provided with means for removably securing the twyer to.

said pipe, the other end of said twyer being closed and beveled upwardly and outwardly and provided Witha nozzle; together with an upwardly-projecting pocket formed integral with said twyer, said pocket having its rear face beveled upwardly and outwardly, and provided with a nozzle.

2. In a device of the class described the combination with a header of a plurality of pipes communicating with said header; a twyer secured to the end of each pipe, said twyer having one of its ends threaded; the other end of said twyer being closed and beveled upwardly and outwardly and provided with a bell-mouth nozzle; together with an upwardly-projecting pocket formed integral with said twyer, said pocket having its rear face beveled upwardly and outwardly and provided with a bell-mouth nozzle.

8. In a soot-cleaner for steam-boilers and the like, a twyer having one end provided With means for removably securing said tWyer to a pipe, the other end of said twyer being closed and beveled upwardly and outwardly and provided with a nozzle; together with an upwardly-projecting pocket formed integral with said twyer, said pocket having its rear face beveled upwardly and outwardly and provided with a nozzle.

4:. In a soot-cleaner for steam-boilers and the like, a twyer provided with means for securing saidntwyer to a blast-conduit, one end of said twyer having a forwardly-directed discharge-nozzle; together with a pocket provided on said twyer, said pocket being provided with a rearwardly-directed dischargenozzle. I

In testimony whereof I aifix my signature in presence of two witnesses.

ELBERT c. FISHER.

Witnesses:

W. A. BROWN, GEO. B. WILLCOX. 

